Question: Since when has Joseph Lyons been a member of the Australian House of Representatives?
Paraphrase: Give the date Joseph Lyons became a member of the Australian House of Representative.
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q370966 p:P39 ?s . ?s ps:P39 wd:Q18912794 . ?s pq:P580 ?value}